| 摘要 |
<p>Mouldable upholstery etc. fabric, which can be coated with vinyl chloride or acrylic resins, polystyrenes, and which is heat-shapable as by vacuum moulding, has polypropylene warps, and wefts of texture ny lon, slack mercerized natural cellulose such as cotton, or regenerated cellulose such as rayon. The polypropylene warps flow during the moulding step, so that a moulded article retains its shape when cool, the wefts being stretchable to accept the shaping. In an example, a woven fabric of propylene yarn (233 denier and 1 ply), 52 warp ends/in. and a weft (166 denier and 2 ply), 48 weft ends/in. (weft contraction 23.2%) having a wt. of 2.84 oz./yd2 is coated under tension by calendering at roller temp. of 310-320 deg.F with a vinyl chloride resin.</p> |
